Codeforces-SolutionsA/Codes/1426 A - Floor Number/1426A.cpp

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2023-07-11 03:29:06 +08:00
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
void solve()
{
int n, x;
cin >> n >> x;
if (n < 3)
cout << "1" << endl;
else
{
n = n - 2;
int f;
if (n % x == 0)
f = n / x + 1;
else
f = n / x + 2;
cout << f << endl;
}
}
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
int TC = 1;
cin >> TC;
cin.ignore();
while (TC--)
solve();
}